|Inswing Replacement Windows, Inward Opening Casement Windows|
|Hinged windows that open inwards, generally the preferred style for casement windows.|
Casement windows, in which a hinge attaches the window sash to the window frame, can swing inwards or outwards. Inswing casement windows are often the preferred style of homeowners.
Inswing casement windows are hinged on the side, bottom or top. Once unlocked the sash can be pulled into the home's interior to fully open it. This method is the opposite of outswing windows in which the sash is pushed outward to the home's exterior. Inswing windows are commonly seen in European-style homes as well as in ranch, colonials and renaissance style homes. The entire sash swings inward to provide an unobstructed view of the outdoors. The windows are easy to clean because it's possible to access the entire window pane, both the inside and the outside of the pane, from within the house. Inswing windows present a full-ventilation window option.
 Types of Inswing Windows
An inswing window attaches the sash to the window's frame on the side of the sash, the top of the sash or the bottom of the sash. Inswing windows which are hinged on the side are generally called casement windows while those hinged on the top are called awning windows and inswings hinged on the bottom are called hoppers.
 Shapes and Sizes
Inswing casement windows are available in both full and nominal wall sizes. Most inswing casement windows are sold in rectangle shapes but special shape inswing casements, including half-rounds, octogons and elliptical, are also available.
 Emergency Windows
Inswing casement windows are code-approved for most emergency exit applications, depending on the window's size.
 Framing Styles
 Window Styles
Inswing windows are suitable as single sash casement windows or as double casements which open side by side. Inswing windows may also be installed as component windows of a bay or bow window unit, in conjunction with fixed windows or any other window style.
Transom windows or other special shape windows are frequently installed above an inswing window as an enhancement to the window or to add light, ventilation or an additional architectural element to the room.
Awning and hopper windows can be installed singly, in a row or above another window unit.
Screens are available for inswing windows. They are placed on the outer edge of the window frame.
 Window Treatments
Window treatments, including shades, curtains, blinds, shutters, sheers and drapes are not suitable for an inswing window. Privacy, when the window is closed, must rely on either an outdoor window covering or privacy glass.
 Operating an Inswing Window
Operating an inswing window may be accomplished with a crank or a remote control unit.
There are a number of considerations to take into account when deciding between an inswing operating or outswing window. These include accessibility, the threshold, durability and security.
It's easier for the homeowner to open and close an inswing window from within the house because the sashes are within easy reach of the homeowner who is standing inside the house. In addition, the sashes will not obstruct foot traffic outside the house.
The operation of an inswing window, however, may interfere with the furnishings within the house that are next to the window and may impede the full operation of the window.
An inswing window relies on a sweep gasket to seal underneath the window and keep water and drafts from penetrating into the house from below the window. These sweeps can wear out through friction, which occurs every time the window is opened or closed. Outswing operating windows are not dependent on these sweeps. A compression gasket, used for outswing windows, will help to seal out wind and water. Since the gasket doesn’t rely on friction, it will be easier to open and close an outswing window.
Inswing windows tend to be less durable than outswing windows due to the ease in which water can penetrate through the window's threshold.
Tabs or studs on the security style hinges which exist on both inswing and outswing windows prevent an intruder from being able to remove the door panel, even if the intruder is able to pop out the pins. Since the hinges can't be compromised, outswing windows are more secure because they can't be kicked in from the outside.
Inswing windows are not as readily available in the window market as outswing windows. Most window manufacturers and companies stock more outswing windows than inswing windows. Many building codes allow outswing windows but not inswing windows.